Non action is a decision. In general, I don't think there is even a possibility to ever make less decisions. A situation happens, and a decision needs to be made to resolved it, non-action is also just one of the possible decision.

I don't think I have ever heard, study or read about the claim of democracy making better decision (at the least, the common refrain about tyranny of the majority comes to mind), so I will have to ask for justifications of that statement.